[PATCH] drm/msm/dpu: Reapply CTM if modeset is needed

[Jessica Zhang]

On 1/17/2023 6:16 PM, Dmitry Baryshkov wrote:
> On Wed, 18 Jan 2023 at 04:14, Jessica Zhang <quic_jesszhan at quicinc.com> wrote:
>>
>> Add a !drm_atomic_crtc_needs_modeset() check to
>> _dpu_crtc_setup_cp_blocks() so that CTM is reapplied after a
>> suspend/resume.
> 
> .. or if the LM/DSPP blocks were reallocated by resource allocation
> during the modeset.

Hi Dmitry,

Acked -- will change the commit message in a v2.

Thanks,

Jessica Zhang

> 
>>
>> Closes: https://gitlab.freedesktop.org/drm/msm/-/issues/23
>> Signed-off-by: Jessica Zhang <quic_jesszhan at quicinc.com>
>> ---
>>   drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
>> index 13ce321283ff..aa120a230222 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
>> @@ -748,7 +748,7 @@ static void _dpu_crtc_setup_cp_blocks(struct drm_crtc *crtc)
>>          int i;
>>
>>
>> -       if (!state->color_mgmt_changed)
>> +       if (!state->color_mgmt_changed && !drm_atomic_crtc_needs_modeset(state))
>>                  return;
>>
>>          for (i = 0; i < cstate->num_mixers; i++) {
>> --
>> 2.39.0
>>
> 
> 
> -- 
> With best wishes
> Dmitry